i have a friend whom i told about Airliners.net, and she tried registering, but what happend it that she got a message saying that Airliners.net dont accept new members! do you guys agree with that or disagree!

It was because new people create waves, and it is also a way to weed out the trouble markers for the time being. You can still join if you email him, and he feels you can contribute something to the site!
Iain

Yes, it was in all the forums, with a special link above the top, for a fairly long time. Nonoe of us have a right to tell Johan how to run his site. I believe you can still get a new membership but you have to specially e-mail him or something. I say this because there HAVE been some new members joining recently.
The policy was introduced as a temporary measure for quality control, and personally i think it's been effective.